__c__. INext-eneration networks must be capable of supporting a multitude of service and quickly adapted over a common heterogeneous physical infrastructure, according to varying and sometimes conflictin customer requirements. In this context, network management must become more fyexible in order to cope with these emerging conditions. More specifically, new management architectures must offer service providers the freedom to mana e their services according to their own policies and seamlessly extend management?unctionality os the only way to react to the introduction of new services. Based on a new business model that describes such an environment, we propose o policy-based management architecture that is extensible and operates i n an active and programmable network. This management architecture is part of a new network architecture that was developed in the FAIN European Union research aid development IST project. provi B ers that exploit an environment in which services are dynamically deployed n the world of networking we are experiencing a significant paradigm shift resulting in new technologies and architectures. The motivation behind this shift is the still elusive goal of rapid and autonomous service creation, deployment, activation, and management resulting from new customer and application requirements. Research activity in this area has clearly focused on the synergy of three concepts: network virtualization, open interfaces and platforms, and increasing degrees of intelligence inside the network.Management, as a key component of a network architecture; must also be considered and designed around the same concepts. To this end, the management architecture must support the coexistence of different management strategies, facilitating customization and interoperation with different vendors' equipment. Management must also be dynamically extensible to support the deployment and operation of new services.In this article we describe the management aspects of a new network architecture designed and implemented as part of the Future Active IP Networks (FAIN) European Union R&D IST project [l]. The main objective of the FAIN project is to develop an active network (AN) architecture oriented toward dynamic service deployment in heterogeneous networks. This architecture.encompasses the design and implementation of active nodes that support different types of execution environment, policy-based driven network management, and a platform-independent approach to service specification and deployment. The architecture is deployed and evaluated in a pan-European testbed. ,The FAIN management architecture encapsulates the three aforemcntioned concepts and is built in accordance with the Internet Engineering Task Force's (IETF's) policy-based management framework [Z]. used in an active network environment. As a consequence, it inherits the features o f this enabling technology, which are then applied to this new prohlem space.Wc briefly introduce the FAIN business model on which the management architecture is based. We g...
In the research project Madeira a meshed network management system based on P2P technologies was developed. Event though, up to date, security has always been neglected in this field of research despite the sensitivity of such systems and the high number of security threats that affect them, Madeira incorporates a security solution aimed at minimizing the identified highest-priority risks on all levels. This solution introduces a distributed certification authority based on threshold cryptography, certificate revocation list distribution points and a collaborative accusation protocol aimed at uncovering hosts that exhibit illegal or unwanted behaviour while avoiding false accusations from a malicious node.
MANBoP is a framework specifically oriented to the management of IP active networks. Based on policy networking and active network technologies, it is one of the first attempts for the management of active and programmable network environments. The framework adapts its functionality on run-time to cope with new active services dynamically installed in the network and heterogeneous managed devices. This extension is realized based on the rights of the user and the management level at which the framework is acting (e.g. network or element level [1]).
Operation Centres are critical from the point of view of maintaining the satellites working in nominal conditions. From their workstations operators, engineers, administrators and others manage literally millions of US $ in assets and maintain services whose availability is of utmost important in our modern society. The increasing trend of cyberthreats has impacted in the space sector by increasing the number of cybersecurity controls within the operational infrastructure, namely network security, security monitoring, security engineering, etc.In this context, reacting proactively to cyberattacks, by knowing them before they occur, helps to reduce their likelihood and impact in the organization. For achieving this proactivity, two axes are at the basis. These two key concepts are going to be analysed further along this paper. First of all, it is important for being proactive, to improve the security monitoring of the systems in the organization and to share it within a community with common interests. The Computer Security Incident Response Team (CSIRT) will use the received information from the community together with their own security information to create the Cyber Situational Awareness (CSA). This index will be used by the organization to calculate how feasible it is that they are the target of a Cyberattack. In other words, CSA is tightly related to the cyber risk posed to the organization. In order to be an active organization, the security information should also be shared with the community. This information shall be anonymised and treated before being shared, being aware that confidential information should be protected and, therefore, not shared with the community. Once the cyber risk of the organization is calculated based on the CSA, it is important to rank this index along with the critical alerts based on the potential damage that the attack can inflict on the threatened assets and therefore to the organization. In other words, ranking the CSA will raise the level of awareness of the risk to the business posed by cyberattacks as well as enhance the capacity to respond to threats.The combination of these two measures is expected to prepare better the organizations to handle incoming attacks, malware outbreaks and other security problems. Moreover, space agencies will be also better guided to prepare the prevention and remediation plans related to cyber security and cyberattacks.The paper will focus in the explanation of the concepts that have been introduced in the previous paragraphs in the context of Space Organizations, having in mind their characteristics and making reference to Control Centres. The increased protection is proposed to be based on raising organizational CSA through the enhancement of the security alert correlation and prioritisation; the linking of the relevance or criticality of an organization assets to its business and mission; to establish a threat intelligence sharing community amongst the different Space Organizations, whether public or private.
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